EP 1897311 A1 20080312 - PRECODER MATRIX FOR MULTICHANNEL TRANSMISSION
Title (en)
PRECODER MATRIX FOR MULTICHANNEL TRANSMISSION
Title (de)
VORCODIERER-MATRIX FÜR DIE MEHRKANAL-ÜBERTRAGUNG
Title (fr)
MATRICE DE PRECODAGE DESTINEE A UN SYSTEME DE TRANSMISSION MULTICANAUX
Publication
Application
Priority
IB 2005001856 W 20050628
Abstract (en)
[origin: WO2007000622A1] This invention describes a method for precoding in a transmitter utilizing a multichannel transmission, using a precoder for, e.g., M-QAM (M>4) modulated OFDM systems. The invention describes a new precoding method that is suitable for use, e.g., in an MB-OFDM UWB system especially when targeting for high data rates (above 480 Mbps). This may involve transmitting 16-QAM in place of 4-QAM symbols. The method could be adopted also for some future wireless LANs (local area networks), for future evolutions of 3G and for 4G systems.
IPC 8 full level
H04L 27/26 (2006.01); H03M 13/29 (2006.01)
CPC (source: EP US)
H04B 1/7176 (2013.01 - EP US); H04L 27/2602 (2013.01 - EP US); H04L 5/0007 (2013.01 - EP US)
Citation (search report)
See references of WO 2007000622A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007000622 A1 20070104; EP 1897311 A1 20080312; US 2009175160 A1 20090709
DOCDB simple family (application)
IB 2005001856 W 20050628; EP 05755936 A 20050628; US 92243605 A 20050628